reading data ...

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

I would like to read data into an array from a text file ( data.txt ). What does the @data actualy contain in the example below ( ref's to anonymous arrays ) ?

Once I read in the 3 lines, how do I push them onto @data correctly ?

data.txt contains 3 lines : "Jan","Feb","Mar","Apr","May","June","July","Aug","Sep","Oct","Nov","Dec"
3,5,7,2,4,9,6,3,6,1
8,4,1,8,9,3,5,1,3,8

use GD::Graph::lines;
use GD::Graph::Map;

print STDERR "Processing sample 5-1\n";

open IN, "<data.txt";
@mydata = <IN>;
close IN;

#
# I would like to read the 3 lines in the data.txt file into data arra
+y below.
# The same data would be in the text file as in the data array below.
#

@data = (    ["Jan","Feb","Mar","Apr","May","June","July","Aug","Sep",
+"Oct","Nov","Dec"],
            [ (3,5,7,2,4,9,6,3,6,1) ],
            [ (3,5,7,6,4,9,6,3,9,1) ]
);

$my_graph = new GD::Graph::lines();

$my_graph->set( 
    x_label => 'Month',
    y_label => 'Measure of success',
    title => 'A Simple Line Graph',
    y_max_value => 10,
    y_min_value => 0,
    y_tick_number => 10,
    y_label_skip => 1,
    box_axis => 0,
    line_width => 5,
);

open PNG, ">sample51.png";
binmode PNG; #only for Windows like platforms
print PNG $my_graph->plot(\@data)->png;
close PNG;

$map = new GD::Graph::Map($my_graph, info => '%l');

open HTML, ">sample51.html";
print HTML "<HTML><BODY BGCOLOR=white>\n".
  ($map->imagemap("sample51.png", $ref)).
  "</BODY></HTML>";
close HTML;

__END__
[download]

Thx
Ginder Singh.

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